An impressive book in which Seth Siegelaub reconnects with artists he engaged with in the late 1960s within the exhibition March 1969 as well as within the exhibitions Op Losse Schroeven, Live in Your Head, When Attitudes Become Form, Konzeption Conception, and Prospekt 69. Provoking essay by Siegelaub and contributions by over 75 artists, including Giovanni Anselmo, Art & Language, Terry Atkinson, John Baldessari, Robert Barry, Bernd & Hilla Becher, Lynda Benglis, Mel Bochner, Alighiero E Boetti, Daniel Buren, Victor Burgin, Donald Burgy, Eugenia Butler, James Lee Byars, John Chamberlain, Ron Cooper, Paul Cotton, Jan Dibbets, Ger van Elk, Esther Ferrer, Rafael Ferrer, Hamish Fulton, Gilbert & George, Dan Graham, Giorgio Griffa, Hans Haacke, Alex Hay, Douglas Huebler, Robert Huot, Richard Jackson, Alan Jacquet, Neil Jenney, Stephen Kaltenbach, On Kawara, Michael Kirby, Joseph Kosuth, Gary Kuehn, David Lamelas, Sol LeWitt, Bernd Lohaus, Brice Marden, David Medalla, Mario Merz, Robert Morris, Doug Ohlson, Dennis Oppenheim, Eric Orr, Giuseppe Penone, Adrian Piper, Michelangelo Pistoletto, Emilio Prini, Markus Raetz, Charles Ross, Allen Ruppersberg, Edward Ruscha, Reiner Ruthenbeck, Robert Ryman, Alan Saret, Sarkis, Jean-Frederic Schnyder, Richard Sladden, Keith Sonnier, Richard Tuttle, Timm Ulrichs, De Wain Valentine, Bernard Venet, Frank Lincoln Viner, Franz Erhard Walther, William Wegman, Lawrence Weiner, William T. Wiley, Ian Wilson. Includes further reading bibliography, notes on the authors, index.